449049883880 has 32 divisors (see below), whose sum is σ = 1088082412200. Its totient is φ = 165803033856.

The previous prime is 449049883861. The next prime is 449049883883. The reversal of 449049883880 is 88388940944.

It can be written as a sum of positive squares in 4 ways, for example, as 403639126276 + 45410757604 = 635326^2 + 213098^2 .

It is a Harshad number since it is a multiple of its sum of digits (65).

It is not an unprimeable number, because it can be changed into a prime (449049883883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431778215 + ... + 431779254.

Almost surely, 2^449049883880 is an apocalyptic number.

449049883880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

449049883880 is an abundant number, since it is smaller than the sum of its proper divisors (639032528320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449049883880 is a wasteful number, since it uses less digits than its factorization.

449049883880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863557493 (or 863557489 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 65.

The spelling of 449049883880 in words is "four hundred forty-nine billion, forty-nine million, eight hundred eighty-three thousand, eight hundred eighty".